# int
# a = 10
# b = -5
# c = 0

# large_number = 1234567890123456789012345678901234567890
# print(large_number)

# float
# a = 3.14
# b = -0.001
# c = 2.0

# print(0.1 + 0.2)
# 0.30000000000000004

# complex
# a = 3 + 4j
# b = 1 - 2j

# c = a + b
# print(c)

# real_part = a.real
# imaginary_part = a.imag
# print(real_part, imaginary_part)

# x = 3.9
# y = int(x)
# print(y)

# a = 5
# b = float(a)
# print(b)

# 常见数学操作
# x = 10
# y = 3
# print(x + y)
# print(x - y)
# print(x * y)
# print(x / y)
# print(x // y)
# print(x % y)

# import math
# print(math.sqrt(16))
# print(math.pow(2,3))
# print(math.sin(math.radians(90)))

# print("456">"1234")

import this